What happened exactly?

Indian wrestler Vinesh Phogat was disqualified from the gold medal bout in the women's 50kg category after failing to make it to the weigh-in on the second day of the competition.

As per the IOC, she was 100 grams overweight during the time of her weigh-in.

Following the uproar created by her disqualification, the Indian Olympic Association (IOA) appealed in front of the Court of Arbitration for Sports (CAS) to give her a shared silver as she won her three bouts on the first day with correct weigh-in.